There are 3636 General Contractors in Ada County, Idaho, serving a population of 435,117 people in an area of 1,053 square miles. There is 1 General Contractor per 119 people, and 1 General Contractor per square mile.
In Idaho, Ada County is ranked 15th of 44 counties in General Contractors per capita, and 1st of 44 counties in General Contractors per square mile.